A woman performing Tawaaf (circumambulation of the Ka`bah) with her face Uncovered

Question 32: Is it permissible for women who are performing Hajj or `Umrah (lesser pilgrimage) to uncover their faces while they are making Tawaaf(circumambulation of the Ka`bah) in the presence of Ajaanib (men other than a husband or permanently unmarriageable male relatives)?

Answer: A woman’s face is part of her `Awrah (parts of the body that must be covered in public) which is impermissible to be uncovered in the presence of non-Mahrams (not a spouse or unmarriageable relatives), whether she is performing Tawaaf or at other times, and… read more here.